Unknown spots on image
Aug 19, 2018 08:08:07 #
I agree with the "insects" theory. There appear to be many small, dark, specks in the first image, yet none in the second. And, insects like to be near water. 
Aug 19, 2018 08:13:06 #
LA
Loc: Little Rock, AR
Look like birds to me. Not blurry at all like nearby insects would be when focussed on infinity. Many of them have the classic shape of soaring birds.
Aug 19, 2018 08:24:47 #
Looks a lot like dust. Could be the second photo is focused on something farther away and the high center of the photo in the second has more blue sky as the clouds in the first image are much closer. I had a problem with dust on an older camera and it showed in some photos but not all. Try getting a few photos of all clouds but take the photos of the same spot one after the other, then get a few more of different clouds the same way.
I took photos of white paper and nothing showed in those photos, it only showed in clouds when it showed at all. You could take the lens off, lock the mirror up, shine a flashlight on the sensor and look closely to see if anything is there (inside, in a non dusty place).
I took photos of white paper and nothing showed in those photos, it only showed in clouds when it showed at all. You could take the lens off, lock the mirror up, shine a flashlight on the sensor and look closely to see if anything is there (inside, in a non dusty place).
Aug 19, 2018 08:39:56 #
Could be loose dust on the sensor that was shaken clean by the dust removing feature of your 5D4 after turning the camera on and off.
Aug 19, 2018 08:44:58 #
billnourse wrote:
I shot some scenery yesterday and after processing... (show quote)
I see the spots. They are insects.
Aug 19, 2018 09:18:40 #
nadelewitz wrote:
I don't see any spots.
If I did, I'd ask if you photographed distant birds?
If I did, I'd ask if you photographed distant birds?
I don’t see the spots either. But if I did it could be dirt on sensor. If you have your camera set to clean sensor when turning off, and you turned it off between shots, then it shakes and maybe the dirt or dust was removed. I would remove lens with open camera facing down and use a blower to remove that dust. Maybe do a lock mirror up for cleaning also.
Aug 19, 2018 09:36:09 #
LA
Loc: Little Rock, AR
John Howard wrote:
I don’t see the spots either. But if I did it could be dirt on sensor. If you have your camera set to clean sensor when turning off, and you turned it off between shots, then it shakes and maybe the dirt or dust was removed. I would remove lens with open camera facing down and use a blower to remove that dust. Maybe do a lock mirror up for cleaning also.
I missed them at first, too. They are tiny. Magnify the image to the max.
Aug 19, 2018 09:55:51 #
Dust and dirt are your enemy . I keep a lens cloth or cleaner with me all the time , it’s a constant battle that on both sides of the lens and your sensor. I can remove anything in LR or PS but I would rather start with a clean photo.
Aug 19, 2018 10:02:24 #
Dust spots on a sensor are almost always lighter and very round. I shoot across a lake a lot and there are times I just have to give up because of insects. As far as being on a filter or lens, it's virtually impossible for depth of field to be high enough to be sharply focused on the lens or filter. I'd say bugs. I have lots of cameras and shoot a lot so sensor cleaning is a normal process for me. I've seen lots of dust spots on sensors and they bdon't look like the darker elongated things on your picture. (I had to hit the + sign to get the shot larger to see them after the download)
Aug 19, 2018 10:06:38 #
Aug 19, 2018 10:38:26 #
Aug 19, 2018 11:10:51 #
Automatic sensor cleaning at turn on/turn off?
There are certainly a lot of spots in #1, but they are tiny!
There are certainly a lot of spots in #1, but they are tiny!
Aug 19, 2018 11:14:25 #
amfoto1
Loc: San Jose, Calif. USA
If that was dust on the sensor, the camera's sensor cleaning cycling whenever it's turned off or on has cleaned it between shots. If it's flying bugs, maybe they were reacting to something being tossed into the pond.
If you've taken test shots of something plain, with the lens stopped way down and defocused, and aren't seeing spots, then you have nothing to worry about. Either the sensor shook the dust off or they were bugs in the 1st image.
Are you concerned that your camera isn't taking level photos? Or maybe that's a Mystery Spot where water doesn't seek level... the way it does in most ponds, lakes and oceans. (5DIV has a built in electronic level, I think.)
If you've taken test shots of something plain, with the lens stopped way down and defocused, and aren't seeing spots, then you have nothing to worry about. Either the sensor shook the dust off or they were bugs in the 1st image.
Are you concerned that your camera isn't taking level photos? Or maybe that's a Mystery Spot where water doesn't seek level... the way it does in most ponds, lakes and oceans. (5DIV has a built in electronic level, I think.)
Aug 19, 2018 11:14:28 #
Aug 19, 2018 11:21:15 #
This looks a lot like ash, any wildfires nearby? Ash can be carried for miles!
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